[Delayed diagnosis in perichiasmal tumors (author's transl)].
D000328:Adult; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis* / Q000628:therapy; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009897:Optic Chiasm; D013997:Time Factors; D014786:Vision Disorders / Q000209:etiology